Husqvarna EZ4624 用户手册

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Adjusting the parking brake
Jack up unit and support properly with jack stands. 

Allow clearance to work at rear transaxles. Before 

making any adjustments:
Set park brake.
Measure the distance between the rod swivel pin and 

the brake arm washer. With the brake engaged, there 

should be a gap of 

1

/

8

" to ½" (3 mm to 13 mm) between 

the swivel pin and the brake arm washer.
If measurement is out of range adjust as follows:
Disengage park brake lever. Remove retaining clip and 

remove brake arm by pulling horizontally from the IZT 

splined shaft.
Rotate brake arm on spline “rearward” to increase 

brake tension. Rotate the brake arm one spline 

“forward” to decrease brake arm tension.
Reinstall the retaining clip and recheck gap between 

rod swivel pin and brake rod washer. Repeat the 

procedure on the other IZT.

If the mower is not tracking straight, check the air 

pressure in both rear tires. Recommended air pressure 

is 15 psi (1 bar). If the unit will not track straight, follow 

the steps below. Tracking must be checked on a flat 

and level concrete or blacktop surface.
Mower is tracking to the right. 
Increase the air pressure 2-3 psi (0.1-0.2 bar) in the 

right rear tire or decrease the air pressure 2/3 psi in 

the left rear tire.
Mower is tracking to the left. 
Increase the air pressure 2-3 psi (0.1-0.2 bar) in the 

left rear tire or decrease the air pressure 

2

/

3

 psi in the 

right rear tire.
Recheck tracking and keep making adjustments with 

the tire pressure until the unit tracks straight.
DO NOT exceed maximum recommended tire 

pressure 24 psi (1.6 bar).
Record the tire pressure for future reference.
If tracking cannot be adjusted satisfactorily, take unit to 

an authorized Husqvarna dealer for service.

8058-011

1. Gap 

1

/

8

" to ½" between swivel and washer

2. Retaining clip
3. Brake arm
Park brake

1

2

3